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进气阀卡住了，关不上。
The intake valve was jammed open.
youdao
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通过分析与计算得到了进排气阀片的运动规律曲线。
At last we got the curve of valve's movement law through analysis and calculation.
youdao
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通过分析与计算得到了进排气阀片的运动规律曲线。
At last we got the curve of valve's movement law through analysis and calculation.
youdao